I believe Lyman's height numbers are distance from the bottom of the dovetail to the center of the sight dot. That will tell you how far above the barrel flat the sight dot sits. With that, you can determine how far above the barrel flat your rear sight should put the front sight dot.
However, a phone call to Lyman customer service to confirm that would be in order: 800-225-9626. They're open 9-4:30 EST M-F.
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